Search Our Scientific Publications & Authors

Physiol Behav 2020 Jul 6:113052. Epub 2020 Jul 6.

Faculty of Education and Sport, University of Vigo, (Spain). Electronic address:

The objective of this research is to detect and analyze the injury patterns that were produced during the 2017-2018 seasons in the Spanish league. The study of the injuries in football concerns the scientific community and the clubs, due to the economic losses and the sports that are involved. The sample comprised 116 detected injuries through the database of TransferMarkt. Read More

J Orthop Res 2020 Jul 8. Epub 2020 Jul 8.

Department of Medical Biostatistics, University of Vermont.

ACL injuries place the knee at risk for post-traumatic osteoarthritis (PTOA) despite surgical ACL reconstruction (ACLR). One parameter thought to affect PTOA risk is the initial graft tension. This randomized controlled trial (RCT) was designed to compare outcomes between two graft tensioning protocols that bracket the range commonly used. Read More

Res Q Exerc Sport 2020 Jul 7:1-9. Epub 2020 Jul 7.

Universidad Pablo De Olavide.

: The aim of this study was to examine the short and long-term effects of a simple strength training program on muscle injury prevention in soccer players. : Twenty-seven U-19 elite male soccer players participated in the study. The investigation was conducted over two consecutive and similar seasons (e. Read More

Rev Bras Ortop (Sao Paulo) 2020 Jun 27;55(3):374-379. Epub 2019 Aug 27.

Departamento Ortopédico, Shahid Beheshti University of Medical Sciences, Akhtar Hospital, Tehran, Iran.

 The present study aimed to compare the oblique and vertical incisions in hamstring tendon harvesting in anterior cruciate ligament (ACL) reconstruction and in infrapatellar branch injury of the saphenous nerve.  The present study was conducted at a tertiary referral center for 12 months. Patients with an indication of reconstruction of ACL tear were included in the study, who were then randomized into two groups (vertical [VG] and oblique [OG] groups). Read More

Orthop Res Rev 2020 25;12:61-67. Epub 2020 Jun 25.

Faculty of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan.

Objective: In this article, we aim to revisit the synthetic graft and review the advantages and disadvantages between different types of grafts for patients who underwent anterior cruciate ligament (ACL) reconstruction in a tertiary medical institute for the new generations of surgeons.

Patients And Methods: Retrospectively, we identified 115 patients who underwent arthroscopic ACL reconstruction between 2006 and 2009. We were able to retrieve 74 patients from them. Read More

Case Rep Orthop 2020 12;2020:8531648. Epub 2020 Jun 12.

Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan, 7-5-2 Kusunokicho Chuo-ku, Kobe, Hyogo 650-0017, Japan.

A 14-year-old girl experienced acute left buttock pain during a sprint. At the local hospital, she was diagnosed with an avulsion fracture of the left ischial tuberosity. She was kept for observation for about 10 months; however, the buttock pain persisted, and the bone fragments did not unite. Read More

Am J Sports Med 2020 Jul;48(8):1974-1982

Department of Trauma and Orthopaedic Surgery, University College Hospital, London, UK.

Background: Injuries to the hamstring complex most commonly involve the proximal musculotendinous junction of the long head of the biceps femoris (MTJ-BFlh). Nonoperative management of these injuries is associated with prolonged rehabilitation and high risk of recurrence. To our knowledge, the surgical management of acute MTJ-BFlh injuries has not been previously reported. Read More

Tissue Eng Part A 2020 Jun 25. Epub 2020 Jun 25.

Division of Sports Medicine, Department of Orthopaedic Surgery, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA.

While a sex effect on outcomes following anterior cruciate ligament (ACL) reconstruction surgery has been previously documented, less is known following bridge-enhanced ACL repair (BEAR). We hypothesized that female sex would have significantly worse early functional outcomes and higher retear rates following primary repair of the ACL enhanced with a tissue-engineered scaffold. Sixty-five patients (28 males and 37 females), age 14-35 with a complete ACL tear underwent primary repair of the ACL enhanced with a tissue-engineered scaffold (bridge-enhanced ACL repair) within 45 days of injury. Read More

Int J Sports Physiol Perform 2020 Jun 24:1-8. Epub 2020 Jun 24.

Purpose: To examine the differences between performing Nordic hamstring exercises once or twice a week on hamstring eccentric strength and other muscle-strain risk factors in high-level football players.

Methods: In this randomized trial, 32 football players (18-23 y old) completed an 8-week Nordic hamstring exercise training program in 1 of 2 experimental groups: group 1 (once a week; n = 15) and group 2 (twice a week; n = 17). Knee-flexor/extensor peak torques and biceps femoris long-head muscle architecture were assessed through isokinetic dynamometry and ultrasonography, respectively, before and after the training programs. Read More

Physiother Theory Pract 2020 Jun 23:1-9. Epub 2020 Jun 23.

Faculty of Physical Therapy and Rehabilitation, Hacettepe University , Ankara, Turkey.

Introduction: Pain and functional limitations affect quality of life of patients with knee osteoarthritis (OA).

Purpose: The purpose of this study was to compare the effects of two different applications (Kinesio taping; KT and Extracorporeal Shock Wave Therapy; ESWT) added to an home-exercise program on pain, strength and function in patients with knee OA.

Methods: Sixty voluntary female subjects were randomly assigned into groups of; KT (n = 22), ESWT (n = 18) and control (CON) (n = 20) respectively. Read More

J Strength Cond Res 2020 Jun 17. Epub 2020 Jun 17.

School of Sport Health and Applied Science, Strength and Conditioning Science, St Mary's University Twickenham, London, United Kingdom.

Burrows, AP, Cleather, D, Mahaffey, R, and Cimadoro, G. Kinetic and electromyographic responses to traditional and assisted Nordic hamstring exercise. J Strength Cond Res XX(X): 000-000, 2020-The Nordic hamstring exercise (NHE) is performed to increase hamstring strength, elicit morphological changes, and reduce injury risk. Read More

Arch Orthop Trauma Surg 2020 Jun 22. Epub 2020 Jun 22.

Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan.

Background: Anterior knee pain (AKP) is a major complication that occurs after anterior cruciate ligament reconstruction (ACLR), even when hamstring tendon (HT) grafts are used. Damage to the infrapatellar fat pad (IPFP) during arthroscopy can cause AKP. The purpose of this study was to evaluate the influence of IPFP preservation on clinical outcomes, including AKP, in patients who underwent ACLR with HT autografts using the inside-out technique. Read More

Int J Sports Phys Ther 2020 May;15(3):421-428

MOTION PT, New York, NY.

Introduction/purpose: Currently there is little evidence supporting the use of objective tests, measures, or imaging to help predict time to return to sport (RTS) following a hamstring strain. The purpose of this study is to investigate the predictive value of tenderness to palpation (TTP) as measured by area and location following hamstring strain.

Study Design: Case Series. Read More

Knee 2020 Jun 11;27(3):709-716. Epub 2020 May 11.

Department of Neurology, All India Institute of Medical Sciences, New Delhi, India. Electronic address:

Background: One of the complications of arthroscopic reconstruction of anterior cruciate ligament (ACL) using hamstring autograft is injury to the infrapatellar branch of the saphenous nerve (IPBSN) leading to loss of sensation around the knee. Its incidence varies according to the orientation of incision for hamstring graft harvest, with oblique incision having the lowest chance of this injury. Aim of this study was to assess clinically and electrophysiologically injury to IPBSN after ACL reconstruction using oblique incision for hamstring graft harvest. Read More

Br J Sports Med 2020 Jun 19. Epub 2020 Jun 19.

Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.

Background: Clinical decision-making around intramuscular tendon injuries of the hamstrings is a controversial topic in sports medicine. For this injury, MRI at return to play (RTP) might improve RTP decision-making; however, no studies have investigated this.

Objective: Our objectives were to describe MRI characteristics at RTP, to evaluate healing and to examine the association of MRI characteristics at RTP with reinjury for clinically recovered hamstring intramuscular tendon injuries. Read More

Rev Esp Cir Ortop Traumatol 2020 Jun 16. Epub 2020 Jun 16.

Departamento de Cirugía Ortopédica y Traumatología, Clínica Universidad de Navarra, Pamplona, España.

Background And Objective: Currently, there is no stablished pre-operative model that helps the orthopaedic surgeon predict the final graft diameter in anterior cruciate ligament reconstruction (ACLR). The purpose of this study was to determine whether there is a correlation between semitendinosus (ST) and gracilis (GT) cross-sectional area (CSA) evaluated pre-operatively in mm using magnetic resonance imaging (MRI) and the final intra-operative ST-GT autograft diameter in mm.

Methods: A retrospective study was designed, 89 patients undergoing ACLR with hamstring autograft participated. Read More

Indian J Orthop 2020 Jul 13;54(4):426-443. Epub 2020 Jan 13.

Western Sussex Hospitals NHS Foundation Trust, West Sussex, UK.

Background: Anterior cruciate ligament (ACL) injury is a common sports injury. Symptomatic knee instability after this injury is usually treated operatively through ACL reconstruction. The surgery involves a tendon graft being fixed in bony tunnels drilled through femur and tibia. Read More

Arthrosc Sports Med Rehabil 2020 Jun 14;2(3):e219-e228. Epub 2020 May 14.

Division of Sports Medicine, Department of Orthopaedic Surgery, Boston Children's Hospital Boston, Massachusetts, U.S.A.

Purpose: To compare postoperative pain scores and opioid use between patients undergoing a standard arthroscopic anterior cruciate ligament reconstruction (ACLR) using hamstring autograft with those undergoing a suture repair augmented with an extracellular matrix scaffold (bridge-enhanced ACL repair) performed through an arthrotomy and to determine factors predictive of postoperative opioid use and levels of overprescription.

Methods: A nonrandomized controlled trial was conducted with 20 patients (10 ACLR, 10 bridge-enhanced ACL repair), aged 18 to 35 years. All surgeries were performed by a single surgeon. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2020 Jun;34(6):713-719

Department of Orthopaedics, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou Fujian, 363000, P.R.China.

Objective: To investigate the effectiveness of the reconstruction of posterior cruciate ligament (PCL) with platelet rich plasma (PRP) and 3-strand peroneal longus tendons under arthroscope.

Methods: Between June 2014 and December 2017, 58 patients with PCL rupture were randomly divided into two groups: the trial group (PRP assisted reconstruction of 3-strand peroneal longus tendons) and the control group (4-strand hamstring tendon reconstruction alone), 29 cases in each group. There was no significant difference in gender, age, injury side, Kellgren-Lawrence grade, time from injury to operation, and preoperative American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot score, International Knee Documentation Committee (IKDC) score, Lysholm score between the two groups ( >0. Read More

J Clin Orthop Trauma 2020 May 6;11(Suppl 3):S332-S336. Epub 2019 Sep 6.

Department of Orthopaedics and Traumatology, Dr. Syaiful Anwar General Hospital, Malang, Indonesia/Faculty of Medicine, Brawijaya University, Malang, Indonesia.

Background: Peroneus longus tendon autograft resembles hamstring tendon's biomechanical strength. Thus, peroneus longus is a potential graft in reconstructive orthopaedic procedures. However, there was few study in evaluation of peroneus longus usage in ACL reconstruction. Read More

PeerJ 2020 26;8:e9237. Epub 2020 May 26.

Department of Sport Traumatology, Catholic University San Antonio of Murcia, Murcia, Spain.

Background: Hamstrings have been analyzed extensively due to their tendency to shorten and their effect in the lumbo-pelvic dynamics and the sagittal position of the spine in trunk flexion with extended knees positions. It has been demonstrated that practicing a certain sport results in long-term changes in hamstring extensibility. Despite this, adequate extensibility of the hamstring musculature is essential for the dancer's performance. Read More

Sports (Basel) 2020 Jun 4;8(6). Epub 2020 Jun 4.

Oslo Sports Trauma Research Center, Department of Sports Medicine, Norwegian School of Sport Sciences, 0806 Oslo, Norway.

We aimed to determine whether an Athletics Injury Prevention Programme (AIPP), targeting the most common athletics injuries, can reduce the occurrence of injury complaints that lead to restrictions in athletics participation (participation restriction injury complaints) in the short (12 weeks) and long (40 weeks) terms. For our 40-week prospective cohort study (level of evidence 2), we invited inter-regional and national-level athletes to regularly perform the AIPP, which included 8 exercises addressing core stability, hamstring, leg and pelvic muscles strengthening and stretching, and balance exercises. A Cox regression was used to analyse the influence of AIPP on the occurrence of participation restriction injury complaint, adjusted to sex, age, height, body mass, discipline, and history of injury complaints during the preceding season, individual response rate, mean weekly training time, mean weekly number of competition, presented by hazard ratio (HR) with 95% confidence interval (95% CI). Read More

BMJ Open Sport Exerc Med 2020 6;6(1):e000732. Epub 2020 Apr 6.

Centre for Injury Prevention and Performance, Athletic Therapy and Training, School of Health and Human Performance, Dublin City University, Dublin, Ireland.

Objectives: To evaluate the effect of a nationwide coach education workshop on the attitudes towards, willingness and perceived ability of camogie coaches to implement a Camogie Injury Prevention Programme (CIPP) and their implementation of this programme 4 weeks after the workshop.

Methods: Coaches (n=98) from all four provinces in Ireland were recruited and completed a questionnaire prior to and immediately following a developed workshop on the CIPP. Four weeks later 40 of the 98 coaches completed a follow-up questionnaire. Read More

Knee Surg Sports Traumatol Arthrosc 2020 Jun 5. Epub 2020 Jun 5.

Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, ON, Canada.

Purpose: To assess the literature on indications, outcomes, and complications in pediatric patients undergoing all-epiphyseal (AE) anterior cruciate ligament reconstruction (ACLR).

Methods: PubMed, Medline, and Embase were searched for literature evaluating AE ACLR in pediatric patients. All included studies were assessed for quality using the Methodological Index for Non-Randomized Studies (MINORS). Read More

Arthroscopy 2020 06;36(6):1647-1648

Sidney Kimmel College of Medicine at Thomas Jefferson University.

Graft choice for anterior cruciate ligament reconstruction has been a great controversy in the sports medicine literature for the last 25 years. It has been well studied in the orthopaedic literature, with numerous randomized control trials and large database studies. There remain advantages and disadvantages to each autograft choice, primarily bone-patellar tendon-bone, quadrupled hamstring, as well as allograft. Read More

Scand J Med Sci Sports 2020 Jun 3. Epub 2020 Jun 3.

National Institute of Fitness and Sports in Kanoya, Kagoshima, Japan.

Limited information is available on whether stiffness is different within and between the constituents of the hamstring, that is, the biceps femoris long head (BFlh), semitendinosus (ST), and semimembranosus (SM). Therefore, understanding of hamstring injuries and stretching effect on hamstring stiffness is difficult. The present study primarily aimed to identify whether passive muscle stiffness differs between the BFlh, ST, and SM and between the proximal, middle, and distal sites within each muscle. Read More

Orthop J Sports Med 2020 May 1;8(5):2325967120918490. Epub 2020 May 1.

Sano Orthopedics, Advanced Orthopedics and Sports Medicine, Kansas City, Missouri, USA.

Background: The widespread historical abandonment of lateral extra-articular procedures in anterior cruciate ligament (ACL) injuries occurred as a result of concerns about high rates of adverse events. Recently, the popularity of lateral extra-articular procedures has resurged, warranting an urgent evaluation of their safety profile.

Purpose/hypothesis: The aim of this study was to perform an interim analysis of the ongoing SANTI randomized controlled trial to determine whether combined ACL and anterolateral ligament reconstruction (ACL + ALLR) is associated with an increased rate of adverse outcomes when compared with isolated ACL reconstruction (ACLR). Read More

Am J Sports Med 2020 Jun 2:363546520922547. Epub 2020 Jun 2.

Bellin Health Titletown Sports Medicine and Orthopedics, Green Bay, Wisconsin, USA.

Background: Lower extremity injuries are the most common injuries in professional sports and carry a high burden to players and teams in the National Football League (NFL). Injury prevention strategies can be refined by a foundational understanding of the occurrence and effect of these injuries on NFL players.

Purpose: To determine the incidence of specific lower extremity injuries sustained by NFL players across 4 NFL seasons. Read More

Int J Sports Med 2020 May 29. Epub 2020 May 29.

Department for Health, University of Bath, Bath, United Kingdom of Great Britain and Northern Ireland.

The COVID-19 pandemic in 2020 has resulted in widespread training disruption in many sports. Some athletes have access to facilities and equipment, while others have limited or no access, severely limiting their training practices. A primary concern is that the maintenance of key physical qualities (e. Read More

Injury 2020 May 23. Epub 2020 May 23.

Department of Orthopedic Oncology, Tianjin Hospital, 300211, Tianjin, China. Electronic address:

Background: The most frequently used auto-grafts for ACL reconstruction (ACLR) are bone-patellar tendon-bone (BPTB) and four-strand hamstring tendon (4S-HT), but significant controversy exists about which graft is better. This study aimed to compare the knee outcomes following ACLR with BPTB and 4S-HT autografts.

Methods: Subgroup meta-analyses were performed basing on available randomised controlled trials (RCTs) according to different follow-up intervals. Read More

Knee Surg Sports Traumatol Arthrosc 2020 May 31. Epub 2020 May 31.

Nicolaas Institute of Constructive Orthopaedics Research and Education Foundation for Arthroplasty and Sports Medicine, Medistra Hospital, Jakarta, Indonesia.

Purpose: This study aimed to evaluate the differences in clinical outcome and donor site morbidity between the Peroneus Longus Tendon (PLT) and Hamstring Tendon (HT) in single-bundle Posterior Cruciate Ligament (PCL) reconstruction.

Methods: Patients with an isolated PCL injury underwent single-bundle PCL reconstruction using consecutive sampling. Patients were allocated into two groups (PLT and HT) and prospectively observed. Read More

J Sport Rehabil 2020 May 29:1-6. Epub 2020 May 29.

Context: Although Ladies Gaelic football is one of the most popular female sports in Ireland, just 2 previous injury surveillance studies have been completed, and both were retrospective in nature.

Objective: To prospectively examine the injury incidence and injury profile in collegiate Ladies Gaelic football over 2 seasons.

Design: Prospective cohort study. Read More

J Sport Rehabil 2020 May 29:1-7. Epub 2020 May 29.

Context: The research on the change in properties of the lower leg muscles by different intensity sinusoidal vertical whole-body vibration (SV-WBV) exposures has not yet been investigated.

Objective: The purpose of this study was to determine effect of a 20-minute different intensity SV-WBV application to the ankle plantar flexor and dorsiflexor muscles properties and hamstring flexibility.

Design: Prospective preintervention-postintervention design. Read More

J Sci Med Sport 2020 May 19. Epub 2020 May 19.

School of Behavioural and Health Sciences, Australian Catholic University, Melbourne, Australia; Sports Performance, Recovery, Injury and New Technologies (SPRINT) Research Centre, Australian Catholic University, Fitzroy, Victoria, Australia. Electronic address:

Objectives: To investigate the architectural and strength adaptations of the hamstrings following 6-weeks of inertial flywheel resistance training.

Design: Randomised, stratified training intervention METHODS: Twenty healthy males undertook 6-weeks of a conventional (n=10) or eccentrically biased (n=10) flywheel leg-curl training intervention as well as a subsequent 4-week detraining period. Biceps femoris long head (BFlh) architecture was assessed weekly, whilst assessments of eccentric and isometric knee flexor strength and rate of force development (RFD) were conducted prior to and following the intervention and detraining periods. Read More

Knee Surg Sports Traumatol Arthrosc 2020 May 24. Epub 2020 May 24.

Department of Orthopaedics, Government Medical College Hospital, Chandigarh, India.

Purpose: To study the effect of age, duration of injury, type of graft and concomitant knee injuries on return to sports after anterior cruciate ligament (ACL) reconstruction.

Method: One-hundred and sixteen athletes underwent ACL reconstruction using either bone-patellar tendon-bone graft (BPTB; n = 58) or semitendinosus-gracilis graft (n = 58), depending upon their random number sequences. Five variables were analyzed in terms of their effect on return to sports-age, type of graft, time interval between injury and surgery, chondral damage and meniscal tears. Read More

Sports (Basel) 2020 May 18;8(5). Epub 2020 May 18.

UCAM Research Center for High Performance Sport, Catholic University San Antonio, 30830 Murcia, Spain.

Isolated injury to the long head of biceps femoris is the most common type of acute hamstring strain injury (HSI). However, the precise hamstring injury mechanism (i.e. Read More

J Orthop Translat 2020 May 6;22:14-25. Epub 2019 Aug 6.

Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong.

Background: The prevalence of patellofemoral joint (PFJ) osteoarthritis (OA) after anterior cruciate ligament (ACL) injury was inconsistently reported in the literature. This review summarises the reported prevalence of PFJ OA and risk factors of PFJ OA after ACL injury.

Methods: PubMed, Embase, WoS, and MEDLINE (OVID) were searched up to 1 March 2019. Read More

Cureus 2020 Apr 18;12(4):e7717. Epub 2020 Apr 18.

Orthopaedics, Ortho One Orthopaedic Speciality Centre, Coimbatore, IND.

Anterior cruciate ligament (ACL) insufficiency in combination with patellar instability are rare occurrences and are difficult to treat. Failure to address patellar instability in such cases may place excessive strain on ACL graft leading to graft rupture. We present three such cases treated by concurrent ACL and medial patellofemoral ligament (MPFL) reconstruction with hamstring tendon autografts. Read More

Chin J Traumatol 2020 Apr 30. Epub 2020 Apr 30.

Department of Orthopaedics, PGIMER & Dr RML Hospital, New Delhi 110001, India.

Purpose: To avoid potential problems of double-bundle anterior cruciate ligament reconstruction (ACLR), various modifications have been reported. This study analyzed a novel technique of modified double-bundle (MDB) ACLR without implant on tibial side in comparison to single-bundle (SB) ACLR.

Methods: Eighty cases of isolated anterior cruciate ligament tear (40 each in SB or MDB group) were included. Read More

J Sport Rehabil 2020 May 13:1-3. Epub 2020 May 13.

Clinical Scenario: Hamstring injuries are the most prevalent lower-extremity injury among soccer players. The Fédération Internationale de Football Association (FIFA) has addressed this issue by developing the FIFA 11+ program, which is focused on improving strength and decreasing the incidence of lower-extremity injuries in the sport. This critically appraised topic focuses on this program as well as one of its components, the Nordic hamstring exercise, in the prevention of hamstring injuries. Read More

Indian J Orthop 2020 May 18;54(3):317-323. Epub 2020 Apr 18.

1Sydney School of Public Health, The University of Sydney, Sydney, Australia.

Background: There is evidence that early return to competition post-anterior cruciate ligament (ACL) injury increases risk of re-injury.

Aims: To compare subsequent ACL and other injury risks following ACL reconstruction for Australian Football League (AFL) players returning to competition at different times post-injury.

Methods: AFL players returning from ACL reconstruction in the 1992-2014 seasons were divided into three groups based on return to competition time (< 10, 10-12 and > 12 months). Read More

J Hip Preserv Surg 2020 Jan 30;7(1):109-115. Epub 2020 Jan 30.

Department of Orthopaedics, The Ohio State University, Sports Medicine Research Institute, 2835 Fred Taylor Drive, Columbus, OH 43202, USA.

To provide descriptive data on injury presentation and treatment and to identify risk factors for requiring surgical treatment for athletes presenting with CrossFit-related hip and groin injuries. CrossFit-related injuries ( = 982) were identified within a single hospital system from 2010 to 2017, with 83 (8.5% of total) identified hip or groin injuries. Read More

Am J Sports Med 2020 Jun 7;48(7):1682-1688. Epub 2020 May 7.

Pan Am Clinic, University of Manitoba, Winnipeg, Manitoba, Canada.

Background: For many athletes, a tear of the anterior cruciate ligament (ACL) represents a significant injury that requires a prolonged period away from the sport with substantial rehabilitation.

Hypothesis: There will be no difference in return to play (RTP) and career length after hamstring tendon (HT) ACL reconstruction in a group of Canadian Football League professional players as compared with what has been already been reported in the literature among professional football players.

Study Design: Case-control study; Level of evidence, 3. Read More

Sisli Etfal Hastan Tip Bul 2019 19;53(4):419-425. Epub 2019 Nov 19.

Department of Orthopedics and Traumatology, University of Health Sciences Metin Sabanci Baltalimani Osteopathic Training and Research Hospital, Istanbul, Turkey.

Objectives: This study is a comparison of the midterm clinical results of patients who underwent anterior cruciate ligament (ACL) reconstruction using an allograft and those who had an autograft procedure.

Methods: The results of 70 patients who underwent ACL reconstruction with an anterior tibial tendon (ATT) allograft (n=18) or a hamstring (HT) autograft (n=52) were evaluated retrospectively. At the last follow-up, International Knee Documentation Committee (IKDC) and Tegner-Lysholm scores were used to assess functional status, as well as results of the Lachman test, the anterior drawer test, and the pivot-shift test. Read More

Arthroscopy 2020 05;36(5):1417-1418

The Ohio State University Wexner Medical Center.

An understanding of expected morbidity of various anterior cruciate ligament graft options is important to inform patient expectations and facilitate successful return to sport following anterior cruciate ligament reconstruction. Hamstring harvest results in decreased hamstring strength. Gracilis preservation may mitigate the degree of strength loss, particularly in deep knee flexion. Read More

Arthroscopy 2020 05;36(5):1308-1310

Albany Health Campus, Albany, Australia.

Proximal hamstring tendon injuries are uncommon injuries, and there are few high-quality studies of surgical procedures in the literature. Increasing standardization of outcome measures with the use of validated, injury-specific, patient-reported outcome measures will improve research in this area. This will allow better assessment of novel surgical techniques. Read More

J Knee Surg 2020 May 5. Epub 2020 May 5.

Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China.

The ideal procedure for anterior cruciate ligament (ACL) reconstruction is one that can achieve anatomical restoration for a better ACL function. This retrospective comparative study was conducted to evaluate the objective and subjective clinical results of the conventional single-bundle femoral round (SBR) tunnel technique, the single-bundle femoral oval (SBO) tunnel technique, and the double-bundle (DB) surgical technique for anatomical ACL reconstruction with hamstring tendon autografts. Patients who underwent the SBO, SBR, and DB ACL reconstructions from January 2016 to August 2017 were included in this study. Read More

Arthrosc Tech 2020 Apr 10;9(4):e469-e475. Epub 2020 Mar 10.

American Knee Institute, Westmont, Illinois, U.S.A.

Patellar tendon ruptures are the third most common injury to the extensor mechanism. These injuries are debilitating to the patient, and delays in treatment can present a challenge to the treating surgeon. Chronic patellar tendon injuries are rare and are more difficult to manage given proximal patellar retraction, scarring, and atrophy of surrounding tissues. Read More

JBJS Essent Surg Tech 2020 Jan-Mar;10(1). Epub 2020 Feb 3.

Division of Pediatric Orthopaedic Surgery, Hospital for Special Surgery, New York, NY.

Patellofemoral instability is a common problem affecting children and adolescents, with recurrent instability often requiring surgical intervention. Medial patellofemoral ligament (MPFL) reconstruction has become a mainstay for the treatment of patellofemoral instability because of the biomechanical importance of the MPFL against lateral dislocation as well as the high frequency of MPFL injury following traumatic patellar dislocation. The concern in managing skeletally immature patients is the potential for injury to the distal femoral physis. Read More